Methanesulfonyl chloride → N-(2-Fluoro-4-hydroxyphenyl)methanesulfonamide
반응식
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([OH:8])=[CH:4][C:3]=1[F:9].[CH3:10][S:11](Cl)(=[O:13])=[O:12]>N1C=CC=CC=1>[F:9][C:3]1[CH:4]=[C:5]([OH:8])[CH:6]=[CH:7][C:2]=1[NH:1][S:11]([CH3:10])(=[O:13])=[O:12]참가 물질
4
반응 조건
- 온도
- 0 °C
실험 절차
4-Amino-3-fluorophenol (0.254 g; 2.0 mmol) was dissolved in 10 ml of dry pyridine under nitrogen and cooled to 0° C. Methanesulfonyl chloride (0.17 ml; 2.1 mmol) was added dropwise and stirred for three days at room temperature. The reaction was evaporated, 25 ml of toluene added and evaporated again. Toluene evaporation was repeated. Residue was dissolved in 25 ml of EtOAc, washed with 20 ml of water and evaporated to dryness to give red-brown solid N-(2-fluoro-4-hydroxyphenyl)methanesulfonamide. 1H NMR (400 MHz, DMSO-d6): 2.93 (3H, s), 6.56-6.66 (2H, m), 7.14 (1H, t, J=9.0 Hz), 9.17 (1H, s), 9.98 (1H, s).
후처리
- customThe reaction was evaporated
- addition25 ml of toluene added
- customevaporated again
- customToluene evaporation
- dissolutionResidue was dissolved in 25 ml of EtOAc
- washwashed with 20 ml of water
- customevaporated to dryness
출처 및 근거
- ORD 기록
- ord-ba401eddf8cd49a1b705a09f6d86b330
- 출처 데이터셋
- uspto-grants-2008_06
- 특허 번호
- US07390923B2
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